Home / 400,666,376.34-553,438,264.77-331,331,827.86

Finding the Fourth Proportional to 400,666,376.34, 553,438,264.77 and 331,331,827.86

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Solution

The fourth proportional to 400,666,376.34, 553,438,264.77 and 331,331,827.86 is: 457,666,833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,666,376.34 : 553,438,264.77 = 331,331,827.86 : x
  2. Step 2: Convert to fraction form
    400,666,376.34/553,438,264.77 = 331,331,827.86/x
  3. Step 3: Cross multiply
    400,666,376.34x = 553,438,264.77 × 331,331,827.86
  4. Step 4: Simplify right side
    400,666,376.34x = 183,371,711,873,910,752
  5. Step 5: Solve for x
    x = 183,371,711,873,910,752/400,666,376.34
  6. Step 6: Final answer
    x = 457,666,833.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.